The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 1984
Filed:
May. 23, 1983
Philip L Deming, Whittier, CA (US);
Carl A Farren, Placentia, CA (US);
Beckman Instruments, Inc., Fullerton, CA (US);
Abstract
An improved liquid sample injection valve having a metering rod for receiving a sample of a test liquid in a sample loading assembly and delivering that sample to a sample evaporating assembly that is connected to a gas chromatograph. In the sample loading assembly there is provided a sample chamber housing having an improved sealing and mounting arrangement that provides a high degree of thermal isolation between the sample loading and evaporating assemblies. A novel mounting arrangement for the metering rod allows the latter to be conveniently changed without disassembling the valve. The sample evaporating assembly is provided with a flow control element which minimizes deal volume and provides improved sample removal and evaporation characteristics.